B3311331313231311331322331333131133133313231133133313331311331323133313123131
>>
B331133131323131133132233133313113313331323113313331333131133132313331312313
<<
B3311331313231311331322331333131133133313231133133313331311331323133313123133
>>
B3311331313231311331322331333131133133313231133133313331311331323133313123132
>>